Mechanical module for filtering vibrations, electromechanical actuator comprising such a mechanical module for filtering vibrations, and closure, covering or solar protection installation comprising such an electro-mechanical actuator

Abstract

A mechanical module for filtering vibrations, designed to be mounted at least in part inside a casing of an electromechanical actuator, comprises a mechanical member for filtering vibrations (34), being in one piece and extending along a longitudinal axis (X34) designed to be aligned with an axis of rotation of a rotor of an electric motor. The member (34) comprises a first end portion (35) and an intermediate portion (36). The first end portion (35) comprises a first ring (37). The intermediate portion (36) is connected to the first end portion (35). The first ring (37) of the first end portion (35) has a first diameter that is greater than a greatest dimension of the intermediate portion (36) measured in a plane orthogonal to the longitudinal axis (X34). The first end portion (35) further comprises a plurality of first arms (38), each first arm (38) connecting the intermediate portion (36) to the first ring (37).

The invention claimed is: 
     
       1. A mechanical module for filtering vibrations intended to be mounted at least partially inside a casing of an electromechanical actuator for a closure, covering or solar protection installation,
 the mechanical module for filtering vibrations comprising at least a mechanical vibration filtering member, the mechanical vibration filtering member being made in one piece and extending along a longitudinal axis intended to be aligned with an axis of rotation of a rotor of an electric motor, 
 the mechanical vibration filtering member comprising at least:
 a first end portion, the first end portion comprising at least a first ring, and 
 an intermediate portion, the intermediate portion being connected to the first end portion, the first ring of the first end portion (having a first diameter greater than a greatest dimension of the intermediate portion measured in a plane orthogonal to the longitudinal axis, 
 
 wherein the first end portion further comprises a plurality of first arms, each of the first arms connecting the intermediate portion to the first ring. 
 
     
     
       2. The mechanical module for filtering vibrations according to  claim 1 , wherein the intermediate portion has a cross section of circular shape, in the plane orthogonal to the longitudinal axis, or wherein the intermediate portion has a cross section of rectangular shape, in the plane orthogonal to the longitudinal axis. 
     
     
       3. The mechanical module for filtering vibrations according to  claim 1 , wherein:
 the mechanical vibration filtering member further comprises at least a second end portion, the second end portion being opposed to the first end portion along the longitudinal axis, the second end portion comprising at least a second ring, 
 the intermediate portion is connected to the second end portion and is positioned between the first and second end portions, and 
 the second ring of the second end portion has a second diameter greater than the greatest dimension of the intermediate portion measured in the plane orthogonal to the longitudinal axis. 
 
     
     
       4. The mechanical module for filtering vibrations according to  claim 3 , wherein the second diameter of the second ring is more than the first diameter of the first ring. 
     
     
       5. The mechanical module for filtering vibrations according to  claim 3 , wherein the second diameter of the second ring is less than the first diameter of the first ring. 
     
     
       6. The mechanical module for filtering vibrations according to  claim 3 , wherein the second end portion further comprises a plurality of second arms, each of the second arms connecting the intermediate portion to the second ring. 
     
     
       7. The mechanical module for filtering vibrations according to  claim 6 , wherein the first arms are angularly offset from the second arms, around the longitudinal axis, by a predetermined angular value. 
     
     
       8. An electromechanical actuator for a closure, covering or solar protection installation, the electromechanical actuator comprising:
 an electric motor, 
 a casing, the electric motor being mounted inside the casing, in an assembled configuration of the electromechanical actuator, and 
 at least a mechanical module for filtering vibrations according to  claim 1 . 
 
     
     
       9. The electromechanical actuator according to  claim 8 , wherein, in the assembled configuration of the electromechanical actuator, the first end portion of the mechanical vibration filtering member is fastened to the casing by means of first fastening elements. 
     
     
       10. The electromechanical actuator according to  claim 8 ,
 wherein:
 the mechanical vibration filtering member further comprises at least a second end portion, the second end portion being opposed to the first end portion along the longitudinal axis, the second end portion comprising at least second ring, 
 the intermediate portion is connected to the second end portion and is positioned between the first and second end portions, and 
 the second ring of the second end portion has a second diameter greater than the greatest dimension of the intermediate portion measured in the plane orthogonal to the longitudinal axis, 
 
 wherein the electromechanical actuator further comprises a torque support, the torque support being positioned at a first end of the casing of the electromechanical actuator, in the assembled configuration of the electromechanical actuator, and 
 wherein the second end portion of the mechanical vibration filtering member is fastened to the torque support by means of second fastening elements. 
 
     
     
       11. The electromechanical actuator according to  claim 10 , wherein the second diameter of the second ring is less than the first diameter of the first ring. 
     
     
       12. The electromechanical actuator according to  claim 10 , wherein the second diameter of the second ring is more than the first diameter of the first ring. 
     
     
       13. The electromechanical actuator according to  claim 10 , wherein the electromechanical actuator comprises a bushing and wherein the bushing is mounted around a shaft of the torque support. 
     
     
       14. The electromechanical actuator according to  claim 13 , wherein, in the assembled configuration of the electromechanical actuator, the electromechanical actuator further comprises at least a viscoelastic element positioned in a position which is at least one selected from the group consisting of:
 between the second end portion of the mechanical vibration filtering member and the bushing, 
 between the casing of the electromechanical actuator and the bushing, 
 between the torque support and the bushing. 
 
     
     
       15. The electromechanical actuator according to  claim 8 ,
 wherein
 the mechanical vibration filtering member further comprises at least a second end portion, the second end portion being opposed to the first end portion along the longitudinal axis, the second end portion comprising at least a second ring, 
 the intermediate portion is connected to the second end portion and is positioned between the first and second end portions, and 
 second ring of the second end portion has a second diameter greater than the greatest dimension of the intermediate portion measured in the plane orthogonal to the longitudinal axis, 
 
 wherein the electromechanical actuator further comprises a torque support, the torque support being positioned at a first end of the casing of the electromechanical actuator, in the assembled configuration of the electromechanical actuator, and 
 wherein the second end portion of the mechanical vibration filtering member forms the torque support. 
 
     
     
       16. The electromechanical actuator according to  claim 15 , wherein the second diameter of the second ring is less than the first diameter of the first ring. 
     
     
       17. The electromechanical actuator according to  claim 15 , wherein the second diameter of the second ring is more than the first diameter of the first ring. 
     
     
       18. The electromechanical actuator according to  claim 8 , wherein the electromechanical actuator comprises at least a battery, the battery being positioned inside the casing. 
     
     
       19. The electromechanical actuator according to  claim 8 , wherein the first end portion comprises at least a first gap between the first ring and one of the first arms for the passage of at least one cable. 
     
     
       20. A closure, covering or solar protection installation, comprising:
 a screen, 
 a winding tube, and 
 an electromechanical actuator according to  claim 8 , 
 wherein the screen is windable onto the winding tube and the winding tube is driven in rotation by the electromechanical actuator.